Dredge hull



W. H. OWENS AND J. L. TAYLOR.

DREDGE HULL.

APPLICATION FILED MAR. 11, 1922.

PatentedSept. 26, 1922.

4 SHEETS-SHEET I.

17227398698.- have ions;

W H. OWENS AND J. L. TAYLOR. DREDGE HULL.

I APPLICATION FILED MAR H, 922. 1,430,179. v PatentedSept. 26, 1922 4 SHEETSSHEET 3 0 t I w I jnven'bms:

Ve'insses:

W. H. OWENS AND J. L. TAYLOR. DREDGE HULL.

Patented Sept. 26, 1922.

4 SHEETSSHEET 4.

w '0 &.'

fitness-as.- nvereiors:

% M 1 fizz/4M HOWJMsW/ Patented Sept. 26, 1922 W L I M H WEN MF Ev i Sb rlY i mi iseiiee was.

' A plicat on filed me'rehi i, ieezrfseriai its? 54294 certain new and useful lmprov'eiiients gin Dredge Hulls, i of hieh the renewingspecification; *7 i This invention relates *tohiulli' construe tions and more particularly to port'ebhhhlls for supporting dredging or other sim ilar machinery, and has for one-'1" its'objeets'flm provision of such a 11 111enemybe'gdismgh tled and shipped over land togdiffereri't points for service, and reassembled Withou't'theuse of special or heavy 'tools and Without dam: age to any 0f itsparts;

' Hulls of the type to "Whieii fihisfim eiition pertains are used principally'for fdre'dgihg irrigation ordraiim'ge carials iii inland ter ritorv to which the hull cannot befia keh as ii'whole 0r in o'nerpiece; I V

Heretofore it has been the prac'ticeYmo build hulls for this purpose ofweod "and, at the" completion of ithe partielilar operation on which it"was eng"aged;to strip 'the fhill'l of maehiiiery, salvage a eomparetively em, i1 portion ofthe' lumber ab'aridon the rest.

This "practice has become so expensive that 1 thisinv' ntion.

. i re? s. a 111 d wT i'fihr m 'h'e f ii g f il h rl i framing"andfiheother" bei g a 1a flie d ecldlirie. I j "Figure 3 is ah endfelewiti Figure 4 fifs edifi the-"line IV IV of Fig'tii'e Q HULL.

plating e-gsid zpiaeiigyv; endendq 1 1 "Sid Y I L v mi s, the several p on' toons' fcoiiipiisiiig th e i 1111' designated generelly'by the 111i erzflfi. Each fqontooifis or ldll'bibil fco'ns memon.

g-l-Iid comprises bottom frliiiie mem s 3", siifi'e 'j'mme members gene fivi rfie inernfb adapted support enc i spifijei iecl'lv'eiy. {A pair f'gm w 111g and sup orting" ir'iiembers git re arranged spaced teiiztioiicoii the side plating adjacent eacireridbii the poi item extended r m-gs sna of-ehemmbrsye siderably greafer "deptii t-he' forming the side fremingeiid fthespar tiveeii themembers Qfdrnis afguideiifay 1O for 'zf'purp'ose befdeseribed. Q i f2 '50 \An i i 4 lft'o L TIeWin der I of eim p sntebm i. v, dared t b ezu sid by. S ide 3m y order they""ere"received5 sinbe eheyiejge oi? identical e0nstri etion thu 'eeil' tepmg to the bottom of each pontoon by bolts channel members 19 are adapted to fit snugly within the guideways 10 between the angle members 9 and to be securely but detachably bolted to the angle members 9 by bolts 21.

Each of the members 9 have connecting plates 22 permanently secured thereto at their lower ends, and said plates are also secured to the bottom frame members 3 extending between the members 9.

Other connecting plates 28 are permanently secured to the flanges of the channel members 19 forming posts adjacent their upper end, and project outwardly beyond the one side of said posts and are adapted to have suitable diagonal bracing members 18 secured thereto. The plates 23 on the two center posts, however, extend beyond the posts both in a foreand-at't direction to receive crossed diagonal bracing members.

. The diagonal brace members 18 are dotachably secured to each of the plates 23 by bolts 25 and extend downwardly and are detachably secured by bolts 26 to the plates 22 secured to the angles 9 between which the next adjacent post is secured. That is, the two center posts are tied together by diagonal braces extending from the top of each post to the bottom of the other, and other diagonal braces extend from the top of the center posts to the bottom of the next post and from the top of? this post to the bottom of the next, and so on until all posts are thus tied together.

The end posts are provided with diagonal braces 24 which are tied to the .plates 22 in the end pontoon.

The braces 18 and 24 are arranged in pairs. That is, one extends from each of the plates 23' and 23 to the plates 22, and each pair of braces are tied together by tie plates 27 permanently secured thereto and thus form one unit.

The top chord of each truss is composed of comparatively short lengths of channel members 28 arranged in pairsso as to form a double channel chord. The pairs of channel members 28 are permanently tied to gether by tie plates 29 and are detachably secured to the tops of the posts 15 and plates .23 by bolts 30.

The bottom chord of each truss is also composed of .romparatively short lengths of channel members 31arranged in pairs and tied together by, tie plates 32 to form a double channel chord. The bottom chord is detacha-bly'seeured to the clips 11 secured Suitable channel deck framing 34 is bolted across the top of the pontoons in a foreand-aft direction and is adapted to support deck flooring 35 which may be heavy wood ,planksas shown or metal plates as desired.

It will thus be seen that the trusses are su'fiicientlystrong and durable to firmly hold the pontoon sections 2 together and to form a rigid hull therefrom, while being so constructed as to be readily dismantled when desired, also that all parts of the hull are of such size, weight, and construction as to provide for ready shipment over land with.- out the provision of any special equipment.

Assuming that the hull parts have been shipped over land and are ready for assembly, to assemble the operation would be as follows: The lower chords would be first lined up on suitable temporary ways, the pontoons would then be set on thechords in any order they present themselves. and the pontoons would be securely bolted. to the chords by bolts 33. The truss post 15 would then be set in position and bolted to the side framing member 9 by bolts 2i. The truss diagonal braces 24: would then be set in position and bolted to the connecting plates and 23, then the top chord will be placed on top of the posts 15 and bolted to the posts and to plates 23 by bolts 30.

The hull is now a complete floating struc ture and the deck framing and deck flooring 35 may be laid before or after launching as desired. I

It will be noted that all bolts are in the open and readily accessible and that there are no openings in the skin or shell plating of the pontoons. Therefore, the hull is as nearly leak-prool as is possible to make such structures.

To dismantle or disassemble the hull, all machinery, cabins, etc, will be removed and the various parts will be unbolted in the reverse order to which they were assembled.

We claim 1. A hull comprising a pluralityof pontoon members, each of said members being composed of bottom, end and side framing having suitable plating rigidly secured thereto, and a plurality of trusses extending in a fore-and-aft direction the entire length of the hull and adapted to rigidly connect said pontoons together, said trusses each being composed of top and bottom chords, a plurality of vertical posts and a plurality of diagonal bracing members. 2. A hull comprising a plurality of pentoon 1nembers,.eaeh of said members being composed of bottom, end and side framing having suitable plating rigidly secured thereto, and a plurality of trusses extending in a fore-and-afl; directionthe entire length of the hull and adapted to rigidly connect said pontoons together, said trusses each being composed of top and bottom rchords, a plurality of yerticalposts and a plurality of diagonal bracing members, said posts and diagonal bracing members being extended from said top chord to the junction of the side and bottom framing of the pontoons and detachably secured. thereto.

3. A bull comprising a plurality of Pentoon members, each of said members being composed of bottom, end and side framing having suitable plating rigidly secured thereto, and a plurality of trusses extending in a fore-and-aft direction the entire length of the hull and adapted to rigidly connect said pontoons together, said trusses each being composed of top and bottom chords, a plurality of vertical posts and a plurality of diagonal bracing members, said posts and diagonal bracing members being extended from said top chord to the junction of the side and bottom framing of the pontoons and detachably secured thereto, said top and bottom chords being formed of a plurality of relatively short lengths detachably secured together, and said bottom chord being detachably secured to the bottom of each pontoon.

4. A hull comprising a plurality of substantially rectangular pontoons, each of said pontoons being composed of bottom, end and side framing having suitable plating rigidly secured thereto, said pontoons being devoid of any erection or connecting holes or other openings in their side, end and bottom plating, and a plurality of trusses extending in a foreand-aft direction the entire length of the hull adapted to rigidly connect said pontoons together, said trusses each being composed of top and bottom chords, a pluralityof vertical posts, and a plurality of diagonal bracing members, said posts and diagonal bracing members being extended from said top chord to the junction of the side and bottom framing of the pontoons and detachably secured thereto, said top and bottom chords being formed of a plurality of relatively short lengths detachablysecured together, and said bottom chord being detachably secured to the bottom of each pontoon.

5. An all metal. hull for supporting dredging machinery and the like comprising the combination with a plurality of substantially rectangular pontoons each of Which is substantially a small boat in itself, and said pontoons being arranged side by side in close proximity to each other and being composed of suitable bottom, side and end framing having suitable plating rigidly and permanently secured thereto, of a plurality of trusses extending ina fore-and-aft direction the entire length of the hull, said trusses each being composed of top and bottom chords, a plurality of vertical posts, and

a plurality of diagonal bracing members,

said posts being composed of two parallel spaced members and being arranged to straddle the side Walls of two adjacent pontoons, and said posts and diagonal bracing members being extended from said top chord to the junction of the side and bottom framing of the pontoons and detachably secured thereto, said top and bottom chords being formed of a plurality of relatively short.

to suitable clips permanently secured to the bottom plating of each pontoon.

set. our hands.

'WILLIAM H. OWENS.

JOHN L. TAYLOR. 

